The other shades of colors from light blue, green, yellow, and orange, indicate intermediate power levels. In the spectrogram, the purple color indicates low power levels, and the red color indicates high power levels.

Spectrogramĭiscover produces a swept spectrogram to depict the signal power over time for a selected frequency band. The AP's third radio returns to Scanning mode when spectrum analysis is stopped. Spectrum analysis automatically stops after the timeout duration configured for the AP. To stop analysis at any time, in the Spectrum Analysis window, click Stop. The default value for duration is 5 minutes and the maximum value is 30 minutes.Ī new browser window opens to display the Spectrum Analysis graph. The duration determines how long the spectrum data will be collected after which the spectrum analysis will automatically stop on the selected AP. In the Spectrum Analysis dialog box, select the band on which you want to perform analysis and the duration.Right-click on an active AP, then select Spectrum Analysis.You can also select Troubleshoot > Spectrum Analysis, then search for an AP by IP or MAC address. Select Monitor > WiFi, then select the Access Points tab.You cannot trigger packet capture for that device.You cannot trigger any prevention on that device.

You cannot start spectrum analysis on the device again.

If spectrum analysis is already running on a device:.

Spectrum analysis cannot be triggered on an AP that is performing prevention or packet capture activity.

Spectrum analysis can be started only on one AP at a time.

When spectrum analysis is started, the third radio switches from scanning mode to spectrum analysis mode and the third radio stops regular scanning. The third radio allows a dedicated source for a consistent spectrum analysis. Spectrum analysis is supported on APs with a third scanning radio. Spectrum analysis enables you to visualize the radio frequencies operating in your area and determine the strength of the detected signals. Spectrum analysis helps you detect various types of interference, non Wi-Fi interference, or interference that can also be transient in nature that decreases the performance of your wireless network. You must be aware of all types of RF interference, including non-Wi-Fi interference, that is present in your environment.

Wifi spectrum analysis